Half to sam matt fridy



UNTDSTATES PATENT f- HALF YTO SAM MATT FRIDY, OF ,SAME PLACE.

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SPECIFICATION kforming p arr of Letters Patent No. 381,177, dated Apri; 17,1888.

` 'Application ined May r, 1887. serial No. 237,415. (No model.)

tion of thevarious parts, as hereinafter fully.

described and claimed, andas illustrated in the accompanying drawings, in which- Figure 1 is a front' elevation of the press,Y

showing oncofthe platensin its depressed position and the other elevated. Fig. 2 is a vertical transverse section through a: m, with full lines showing the platen elevated and dotted lines depressed. Fig. 3-is a front .view ofthe fulcrum-beam, having one of the levers connected with it by a hinge, and with a socket shown for receiving the end of the other.

Similar letters refer to like parts throughouty the several views.

The press 'represented in the drawings and described in this specitlcation is intended to operate upon two moldsat the same time, they being placed with their length transverse on the same principle to operate onany number of molds, their position in the press being varied to suit'circumstances. f

Referring to the drawings, A represents the bed or base upon which the molds rest.; B, the standards connected near the top and toward their rear edges by a beam, C, in which lie the fulcrum-'points of the handdevers H.

' E and F are two bearing-plates mortised into the standards in front of the beam C, the first, E, being somewhat lower than the under edge of C, and the second, F, placed some distance below the rst; Y

The platens D are supported below the plat F by rods Gr, passing Vupward through openings in both plates. Theserods have springs g coiled around them between the two plates, the lower ends of which bear upon the plate F and the upper on pins projecting from the 5o rods for thatrpurpose. These springs serve to of the press; but presses can be constructed:

uphold the rods-in position, and when. not

compressed draw the platens up against the lower face of the plate F.

On aline ,with each rodthere is a hand-.

lever,"H, hinged to the loweredge of the beam 0, as' at h. AVVhen they are turned down, these levers project forward and engage the .upper Y ends of the rods G, which,"'upon the exertion of due pressure, they force downward, causing the platens to press upon the molds.

Immediately Sover each platen there is a rigid stay, I, hinged to the ,front edgeof ithe Y plate E at e. These stays are'of such'length y that `when the platensV are .pressing upon aY mold theyhang vertically'downward and keep 65 said platens in engagement'withrthe mold;k but when the platens are held up'against the plateF the stay'projccts diagonally forward z Y and rests upon the frontof the platens.

The operation of my press is exceedingly 7o simple. A mold having been placed on thel base below one of the platens, the operator presses upon'the lever and forces the platen down upon it, so as rto compress the material contained therein. reaches 'that position the stayl I, by reasonV of l its owny gravity, swings inward and engages the top ofthe platen to hold .it down. In orL .der to. facilitate the movement of the stay, the

swinging, end iis made muchlarger than. the y80 upper. *To release the mold, the lower end of thezstay'is simply pushed outward, when the platen is raised by the action of the spring g. -j These stays are secured to the plateE by fastening the hinge to their front faces, so.that85 when they are holding the Yplaten down the upper end bears against the lower face of the plate, Vreliev ing the hinge Vfrom undue strain;

There aretwo arrangements for the levers. Eitherth'ere may be one hinged to the beam C 9o back of each rod G, or there may bea socket, c, in said beam in place of each hinge and one lever 'used for all the rods by inserting itinl turnineach socket and withdrawing it as soon as the platen is forced downward, i

Having thus describedy my invention, what I Y claim as new, and des-ire to secure by Letters Patent,is v

1. The combination of the frame composed',

of the base A, the standards Bi, the beam C, Ioofv Asv soon as the platen n and plates E and F, arranged as described, the same, of a grarity-stay hinged to a crosswth the platen D, the rod G, supported by plate of the frame above said platen, substan` the spring g, the lever H, and the gravity-stay tially as and for ythe purpose specified.

I, substantially as and for the purpose speci- DAVID SLAUGHTER. 5 fied. Witnesses: A

2. In a Cganmold press, the combination, GEO. A. LANE,

with the platen and mechanism for depressing WM. R. GERHART. 

